It's All About the Idol Dietwomen!
The live event is a bust, but neither Natsuki nor Shizuka are willing to go down that easily -- nor is anyone else. Source: crunchyroll
Aired 26/03/2017EP 12 - It's All About the Idol Dietwomen!

2017
Idol Incidents
Part of MAGES' multimedia "Idol Jihen" project.
The anime takes place in a parallel-world Japan, where idols stand up against a corrupt government as "idol Diet members," and then work to bring back the smiles of the Japanese people through song and dance. The idol Diet members belong to seven different political parties, including the Heroine Party, the SOS Party, the Subculture New Party, the Bishōjo Party, the Wakaba Party, the Starlight Party, and the Sanrai Party.
(Source: Anime News Network)